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Finding the Fourth Proportional to 61,269.72, 84,551.88 and 34,412.64

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Solution

The fourth proportional to 61,269.72, 84,551.88 and 34,412.64 is: 47,489.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,269.72 : 84,551.88 = 34,412.64 : x
  2. Step 2: Convert to fraction form
    61,269.72/84,551.88 = 34,412.64/x
  3. Step 3: Cross multiply
    61,269.72x = 84,551.88 × 34,412.64
  4. Step 4: Simplify right side
    61,269.72x = 2,909,653,407.76
  5. Step 5: Solve for x
    x = 2,909,653,407.76/61,269.72
  6. Step 6: Final answer
    x = 47,489.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.